how to do/what to do/...之类的短语(疑问词+不定式,其中do泛指某个动词)
用法上相当于名词(只能充当名词能充当的成分)?
还是相当于wh从句(只能充当wh从句能充当的成分)?
使用时与名词或wh从句有什么区别?
注:这里的wh从句是指这种短语对应的wh从句,例如,how to do对应how从句;what to do对应what从句。
1. wh-word to do... 具有名词的语法作用,与 wh-word + 从句(名词性从句)相比,更加简练。
2. to do it 和 how to do it ,在语法作用上的区别:
a. He taught me to draw a horse. (宾补) 结构:teach sb. to do sth.
b. He taught me how to draw a horse. (直接宾语) 结构:teach sb. sth.
b 句可以转换为:He taught me how I should draw a horse.
如果觉得我的回答对您有用,请随意打赏。你的支持将鼓励我继续创作!